Erpetogomphus agkistrodon (Dark Ringtail) Erpetogomphus boa (Boa Ringtail) Erpetogomphus bothrops (One-striped Ringtail) Erpetogomphus compositus (White-belted Ringtail) Erpetogomphus constrictor (Knob-tipped Ringtail) Erpetogomphus cophias Erpetogomphus crotalinus (Yellow-legged Ringtail) Erpetogomphus designatus (Eastern Ringtail) Erpetogomphus elaphe (Lime Ringtail) Erpetogomphus elaps (Straight-tipped Ringtail) Erpetogomphus erici (Eric's Ringtail) Erpetogomphus eutainia (Blue-faced Ringtail) Erpetogomphus heterodon (Dashed Ringtail) Erpetogomphus lampropeltis (Serpent Ringtail) Erpetogomphus leptophis (Horn-tipped Ringtail) Erpetogomphus liopeltis (Dark-shouldered Ringtail) Erpetogomphus molossus (Black-tailed Ringtail) Erpetogomphus ophibolus (Tuxtla Ringtail) Erpetogomphus oxybelis Erpetogomphus sabaleticus (Colombian Ringtail) Erpetogomphus schausi (Schaus's Ringtail) Erpetogomphus sipedon (Plateau Ringtail) Erpetogomphus tristani (Tristan's Ringtail) Erpetogomphus viperinus (Viper Ringtail)